Full Title

Removing undesirable matter from roads or like surfaces, with or without moistening of the surface (for snow or ice E01H5/00; cleaning tramway rails E01H8/00; obstruction removers on vehicles B60R19/00; in combination with application of bitumen or the like E01C19/16; in combination with application of traffic line E01C23/16 ) > Hydraulically loosening or dislodging undesirable matter (stationary flushing devices E01H3/04); Raking or scraping apparatus (hand implements E01H1/12 )